Can You Define Trig Functions via a Differential Equation

Explore an intriguing mathematical concept in this 26-minute video that examines whether trigonometric functions can be defined using differential equations. Delve into the fascinating intersection of calculus and trigonometry as the presenter guides you through the process of deriving trig functions from differential equations. Learn how this approach provides a unique perspective on these fundamental mathematical functions and gain insights into their properties and relationships. Enhance your understanding of both trigonometry and differential equations through this thought-provoking exploration.

Can you define trig functions via a differential equation???